#include <TParticle.h>
#include <TObjArray.h>
#include "TClonesArray.h"
#include "TROOT.h"
#include "TPluginManager.h"
#include "TApplication.h"
#include "TSystem.h"
#include "TH1.h"
#include "TH2.h"
#include "TPad.h"
#include "TCanvas.h"
#include "TFile.h"
#include "TF1.h"
#include "TH2D.h"
#include "TH3D.h"
#include "TFormula.h"
#include "TString.h"
#include "TPaveLabel.h"
#include "TStyle.h"

#include <iostream>
#include <sstream>
using namespace std;

TString convertInt(Int_t number)
{
   stringstream ss;//create a stringstream
   ss << number;//add number to the stream
   return (TString)ss.str();//return a string with the contents of the stream
}

int test(){

  stringstream out;

  for(Int_t i = 0; i < 4; i++){
    cout << "gem"+convertInt(i)+"vol" << endl;
  }

  return 0;

}
